Roofing-tongs



(No Model.)

L. L. SAGENDORPH. ROOPING TONGS.

No. 417.948. Patented Deo. 24, 1889.

ZIV

UNITED STATES PATENT OEEICE.

LONGLEY LEIVIS SAGENDORPH, OF CINCINNATI, OIIIO.

ROOFING-TONGS.

SPECIFICATION forming part of Letters Patent N o. 417,948, dated December 24, 1889.

Application filed September 21, 1889. Serial No. 324,671. (No model.)

T0 all whom, t may concern.-

Be it known that I, LONGLEY Lnwrs SAG- ENDORPH, a citizen of the United States, residing at Cincinnati, in the county of Hamilton, State of Ohio, have invented certain new and useful Improvements in Roofing Tongs, of which the following is a specification, reference being had to the accompanying drawings.

My improved tongs are intended more especially for use in connection with metallic roofs, to form and compress a circular standing seam around a cleat provided with a tubular portion, as described and claimed in my application for Letters Patent filed July 11, 1889, Serial No. 317,213.

In the accompanying drawings, Figure l is an end elevation of my improved tongs with the jaws open in position over a standing seam to be formed. Fig. 2 is a perspective view of the tongs with the jaws closed, and Fig. 3 is a section of a standing seam formed by the aid of said tongs.

The body portion of the jaws A and B is circular in cross-section, as shown, to conform to the tubular portion of the cleat.

The principal feature of my invention consists in so forming the jaws of the tongs as that one of said jaws shall operate in a curvilinear line below the opposing jaw, in order to form a more perfect lock for the seam. The object in having the clamping-point of one jaw fall below the clamping -point of the other jaw is to more firmly compress or lock the metal around the tubular portion of the cleat without injury to the metal. When the jaws are made tvo-approach each other in the same plane, the metal is compressed against the cleat, and in consequence the metal is bruised or broken, and will spring back again to alimited extent when the jaws of the tongs are released; but when Vcompressed by 'my improved tongs, in which the point of one jaw falls beneath the other jaw, the metal is swaged into the cleat to a limited extent beneath the tubular portion, thus affording a more secure joint, the metal being swaged together without injury thereto.

,rst, the one jaw approaching the opposite 6o jaw in a different curvilinear line will permit of the metal being clamped tighter and locked more securely than it otherwise would be were said jaws to approach each other in the same curvilinear line, and in this manner the side hooked iianges of the roofing-sheets are more securely clamped around the tubular portion of the cleat and locked thereto, as fully set forth in my aforesaid application. A second advantage afforded by reason of the afore-de- 7o scribed construction is, that a uniform clamping power or pressure is had for the entire length of said jaws.

Vhile my improved tongs were invented and constructed with special reference to the formation of a standing-seam joint for roofing-plates, the same may be used in any other applicable capacity.

IVhat I claim as new, and desire to secure by Letters Patent, is- 8o The roofing-tongs herein shown and set forth, consisting of two jaws circular in crosssection and pivotally connected with suitable handles attached thereto, the clamping portion along the lower edge of one jaw falling S5 below the clamping portion along the lower edge of the opposing jaw, said jaws extend- .ing laterally at right angles to said handles,

C. U. ScHEEvEcK, Gno. M. VERITY. 

